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[James Ferguson <1591790@xxxxxxxxxxxxxxxxxx>]

Numerous suspend/resumes and no sign of the bug.  For reference, I never
had this problem on 14.04.

** Tags added: kernel-fixed-upstream

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1591790

Title:
  Resume from suspend, lock screen causes gpu hang

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Frequently, returning from suspend, the lock screen 'crashes'.  I
  typically enter my password, it freezes (sometimes shows me my
  desktop) and then I get the lock screen again, presumably it's
  respawned.  My syslog shows a kernel stack trace and "drm/i915:
  Resetting chip after gpu hang"

  Just before reporting this it happened twice before I got past the lockscreen to my desktop
  ----

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-24-generic 4.4.0-24.43
  ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
  Uname: Linux 4.4.0-24-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  james      1988 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Jun 12 20:58:31 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-05-21 (22 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: LENOVO 2325KZ5
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=UUID=72122534-7dd5-411b-9c56-c4844502e0ad ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-24-generic N/A
   linux-backports-modules-4.4.0-24-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ETA0WW (2.60 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2325KZ5
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: 518896
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2325KZ5:pvrThinkPadX230:rvnLENOVO:rn2325KZ5:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2325KZ5
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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